// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
TMS5501 Multifunction Input/Output Controller emulation
**********************************************************************
_____ _____
Vbb 1 |* \_/ | 40 XMT
Vcc 2 | | 39 XI0
Vdd 3 | | 38 XI1
VSS 4 | | 37 XI2
RCV 5 | | 36 XI3
D7 6 | | 35 XI4
D6 7 | | 34 XI5
D5 8 | | 33 XI6
D4 9 | | 32 XI7
D3 10 | | 31 _XO7
D2 11 | TMS5501 | 30 _XO6
D1 12 | | 29 _XO5
D0 13 | | 28 _XO4
A0 14 | | 27 _XO3
A1 15 | | 26 _XO2
A2 16 | | 25 _XO1
A3 17 | | 24 _XO0
CE 18 | | 23 INT
SYNC 19 | | 22 SENS
phi1 20 |_____________| 21 phi2
**********************************************************************/
#pragma once
#ifndef __TMS5501__
#define __TMS5501__
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_TMS5501_IRQ_CALLBACK(_write) \
devcb = &tms5501_device::set_irq_wr_callback(*device, DEVCB_##_write);
#define MCFG_TMS5501_XMT_CALLBACK(_write) \
devcb = &tms5501_device::set_xmt_wr_callback(*device, DEVCB_##_write);
#define MCFG_TMS5501_XI_CALLBACK(_read) \
devcb = &tms5501_device::set_xi_rd_callback(*device, DEVCB_##_read);
#define MCFG_TMS5501_XO_CALLBACK(_write) \
devcb = &tms5501_device::set_xo_wr_callback(*device, DEVCB_##_write);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> tms5501_device
class tms5501_device : public device_t,
public device_serial_interface
{
public:
// construction/destruction
tms5501_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template<class _Object> static devcb_base &set_irq_wr_callback(device_t &device, _Object object) { return downcast<tms5501_device &>(device).m_write_irq.set_callback(object); }
template<class _Object> static devcb_base &set_xmt_wr_callback(device_t &device, _Object object) { return downcast<tms5501_device &>(device).m_write_xmt.set_callback(object); }
template<class _Object> static devcb_base &set_xi_rd_callback(device_t &device, _Object object) { return downcast<tms5501_device &>(device).m_read_xi.set_callback(object); }
template<class _Object> static devcb_base &set_xo_wr_callback(device_t &device, _Object object) { return downcast<tms5501_device &>(device).m_write_xo.set_callback(object); }
virtual DECLARE_ADDRESS_MAP(io_map, 8);
DECLARE_WRITE_LINE_MEMBER( rcv_w );
DECLARE_WRITE_LINE_MEMBER( sens_w );
DECLARE_WRITE_LINE_MEMBER( xi7_w );
uint8_t get_vector();
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
// device_serial_interface overrides
virtual void tra_callback() override;
virtual void tra_complete() override;
virtual void rcv_complete() override;
DECLARE_READ8_MEMBER( rb_r );
DECLARE_READ8_MEMBER( xi_r );
DECLARE_READ8_MEMBER( rst_r );
DECLARE_READ8_MEMBER( sta_r );
DECLARE_WRITE8_MEMBER( cmd_w );
DECLARE_WRITE8_MEMBER( rr_w );
DECLARE_WRITE8_MEMBER( tb_w );
DECLARE_WRITE8_MEMBER( xo_w );
DECLARE_WRITE8_MEMBER( mr_w );
DECLARE_WRITE8_MEMBER( tmr_w );
private:
enum
{
TIMER_1 = 0,
TIMER_2,
TIMER_3,
TIMER_4,
TIMER_5
};
enum
{
IRQ_TMR1 = 0x01,
IRQ_TMR2 = 0x02,
IRQ_SENS = 0x04,
IRQ_TMR3 = 0x08,
IRQ_RB = 0x10,
IRQ_TB = 0x20,
IRQ_TMR4 = 0x40,
IRQ_TMR5 = 0x80,
IRQ_XI7 = 0x80
};
enum
{
STA_FE = 0x01,
STA_OE = 0x02,
STA_SR = 0x04,
STA_RBL = 0x08,
STA_XBE = 0x10,
STA_IP = 0x20,
STA_FBD = 0x40,
STA_SBD = 0x80
};
enum
{
CMD_RST = 0x01,
CMD_BRK = 0x02,
CMD_XI7 = 0x04,
CMD_IAE = 0x08,
CMD_TST1 = 0x10,
CMD_TST2 = 0x20
};
enum
{
RR_110 = 0x01,
RR_150 = 0x02,
RR_300 = 0x04,
RR_1200 = 0x08,
RR_2400 = 0x10,
RR_4800 = 0x20,
RR_9600 = 0x40,
RR_STOP = 0x80
};
static const uint8_t rst_vector[];
void set_interrupt(uint8_t mask);
void check_interrupt();
devcb_write_line m_write_irq;
devcb_write_line m_write_xmt;
devcb_read8 m_read_xi;
devcb_write8 m_write_xo;
uint8_t m_irq;
uint8_t m_rb;
uint8_t m_sta;
uint8_t m_cmd;
uint8_t m_rr;
uint8_t m_tb;
uint8_t m_mr;
int m_sens;
int m_xi7;
emu_timer *m_timer[5];
};
// device type definition
extern const device_type TMS5501;
#endif